The logo is too big in relation to the type.
Too much tracking on the type.
The S is weak and the tail of the T is ugly.
The crossbar of the E is relatively too straight and clean.
The canopy of the tree is lost.
The logo is inappropriately symmetrical and could use a lot of refinement.
The underline adds nothing.
Too similar to Avatar.

It's where a lot of top typographers and design professionals hang out. You can be sure to get expert constructive feedback there, and also increase awareness of Blender at the same time.

I think that's a great idea. Input from pro designers will only make the logo better. There are so many factors to consider when doing something like this, things that a trained designer will be familiar with.